baber/WOPTO huggingface dataset:
Patent CA-1050195-A (CA)
Inventor: MERTES FRIEDRICH
IPC: C08G69/04
Filed: 1975-03-20
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE           A process for the manufacture of a polyamide by continuously conveying the aqueous solution of a salt of essentially equivalent amounts of a diamine, or of a mixture of several diamines, and of a dicarboxylic acid, or of a mixture of several dicarboxylic acids, through several reaction zones under polyamide-forming conditions, wherein (a) in a first reaction zone the mixture of starting materials is heated to a temperature of at least 220°C, but not higher than 300°C, at a pressure which is above the corresponding saturation vapor pressure of water and prevents the formation of a vapor phase, until the polycondensation conversion is at least 80%, but without completing the condensation in this zone, (b)  in a second zone the pressure acting on the polycondensation mixture is released, adiabatically, to levels of not less than 3 atmospheres, and not more then 20 atmospheres, so as to reach temperatures below 215°C, (c)  the polycondensation mixture is then heated in a third reaction zone comprising a heat exchanger consisting of heat exchange elements connected in parallel, to from 220 to 330°C, in the course of less than 5 minutes, with evaporation of the bulk of the water, at the pressure level to which the pressure had previously been released or at a lower pressure, (d)  in a fourth reaction zone the polycondensation mixture is separated from the water vapor, and (e)  finally the condensation is completed under the conditions prevailing at the end of the third reaction zone to form a high molecular weight filament-forming polyamide.
Patent CA-1039835-A (CA)
Inventor: DELANEY MICHAEL J
IPC: B60L15/20
Filed: 1975-06-23
Granted: 1978-10-03
Abstract: MOTOR CONTROL SYSTEMS   Abstract of the Disclosure: A battery-powered thyristor-controlled lift truck traction motor control system includes simple and economical means for providing plugging torque in a continuous or proportional manner. A dual-motor drive system disclosed allows series motors to be operated in parallel from a single thyristor control system during both acceleration and plugging conditions, and allows the two motors to be operated at widely dif-ferent speeds without large currents circulating between them.
Patent CA-1049626-A (CA)
Inventor: WAENERLUND LARS
IPC: B23K11/22
Filed: 1976-01-02
Granted: 1979-02-27
Abstract: Abstract of the Disclosure In accordance with one embodiment of the invention the packing-wire cutting device includes an electrical electrode assembly comprising a pair of arms pivotally mounted on a bearing shaft, the ends of the arms remote from the bearing shaft carrying each one a rotatable disc together forming an electrode roller supplied with electric power from a supply cir-cuit normally open at the electrode roller which has a gap between its ro-tatable discs.  Further the packing-wire cutting device comprises a con-veyor path for the goods to be treated by said device, said goods being provided with a packing of wires crossing the sides of the goods.  When the goods passes the packing-wire cutting device the electrode roller is caused to pivot towards the goods side so as to engage against this side to be rotated when the goods is advancing so that when any of the wires is passing the electrode roller it closes the supply circuit whereby the section of the wire located between the rotatable discs will melt off.
Patent CA-1049972-A (CA)
Inventor: PICKETT JOHN E P
IPC: G02B21/34
Filed: 1976-03-30
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE     A two-part histologic tissue processing and embedding structure comprises an open-ended base pan and a perforated top member.  For processing, the base pan and top may be snap-fitted together to form a compact housing for holding and transporting the tissue specimens through the various processing liquids.  For embedding, the top is inverted so that the top and base pan may be loosely seated together as a mold for receiving paraffin which solidifies to embed the tissue specimen.  For slicing, the base pan is used as a microtome clamp aligning device and is then removed and the top serves as a mounting device for mounting the embedded specimen in a microtome clamp during slicing, and for storage the base pan may be secured back onto the top and placed over the remaining unsliced embedded specimen for protection.
Patent CA-1051709-A (CA)
Title: Rake implement
Inventor: BINDER JOSEF
IPC: A01D7/00
Filed: 1976-04-20
Granted: 1979-04-03
Abstract: TITLE OF THE INVENTION      Rake Implement.            ABSTRACT OF THE DISCLOSURE         The invention relates to a rake comprising a crosshead, means provided on said crosshead enabling it to be fitted to a handle and a row of tines or the like secured to the crosshead, said crosshead being formed of a synthetic plastics material and said tines or the like being formed of metal and having one end embedded in the synthetic plastics material of the crosshead.
Patent CA-1074128-A (CA)
Inventor: MONTAGNA DOMINIC
IPC: C22B21/00
Filed: 1976-05-05
Granted: 1980-03-25
Abstract: FLUXLESS RECOVERY OF METALLIC ALUMINUM FROM WASTES     ABSTRACT OF THE DISCLOSURE           Aluminum metal is recovered from processing wastes, such as dross, beverage can scrap and the like, without use of a flux by heating the wastes to a tempera-ture above the melting point of aluminum but below about 800°C. while maintaining the wastes under a protective gaseous atmosphere which is substantially inert to molten aluminum.  After melting of aluminum contained in the wastes is complete, the heated material is agitated gently to agglomerate the molten aluminum and to cause its set-tling and collection in the bottom of the containment vessel.  Molten aluminum is thereafter removed from the vessel leaving a substantially inert residue.  Argon is preferred as the protective atmosphere.
Patent CA-1046789-A (CA)
Inventor: HILL JAN
IPC: G01N21/53
Filed: 1976-05-13
Granted: 1979-01-23
Abstract: Abstract of the Disclosure In a method for examining pulp for the presence of shives therein a suspension of the pulp is passed through a measuring duct with transparent walls and at least one beam of light having a wavelength within the infra-red range from 750 to 950 nm is directed through the measuring duct perpendicularly to the direction of flow of the pulp suspension therein. The intensity of the light beam after its passage through the measuring duct is measured by means of a photo detector and the output signal of the photo detector is analyzed with respect to amplitude variations therein.
Patent CA-1076732-A (CA)
Inventor: NICKS PETER F
IPC: C08G18/80
Filed: 1976-06-11
Granted: 1980-04-29
Abstract: ICI Case PV 27966 Abstract of the Disclosure Coating compositions comprise a blend of (1)      a dispersion in an organic liquid comprising a major proportion of aliphatic hydrocarbon of particles of a polyisocyanate or adduct thereof insoluble in the organic liquid the dispersion being stabilised by a defined polymeric stabiliser and, (2)        a solution in a solvent comprising a major proportion of aliphatic hydrocarbon of a material containing groups which are reactive with isocyanate groups contained in or yielded by the polyisocyanate of the dispersion.
Patent CA-1077572-A (CA)
Inventor: GEERLING LEONARDUS J
IPC: A61N1/36
Filed: 1976-06-23
Granted: 1980-05-13
Abstract: Abstract of the Disclosure A pulse generator for providing timed pulses of adjustable amplitude and constant width for nerve stimulation at selected portions of a body.  The timed pulses of positive and negative amplitude are generated alternately and the period can be precisely set.
Patent CA-1070223-A (CA)
Inventor: CUDDY LEE J
IPC: C21D3/08
Filed: 1976-07-29
Granted: 1980-01-22
Abstract: SPECIFICATION          LEE J. CUDDY and HARRY H. PODGURSKI      SUBSCALE REACTION STRENGTHENING OF LOW CARBON FERROUS METAL STOCK          ABSTRACT OF THE DISCLOSURE Low carbon, low alloy, ferrous metal stock containing from 0.05 to 0.5 wt. percent uncombined group IVB or VB metal, is strengthened by a procedure comprising; gas phase nitrogenation at temperatures below 590°C to form extremely fine dispersions of such group IVB or VB metal nitrides, followed by an additional treatment for removing excess nitrogen in solid solution.
Patent CA-1076184-A (CA)
Inventor: KOETHER BERNARD G
IPC: F24C7/08
Filed: 1976-08-09
Granted: 1980-04-22
Abstract: OVEN COOKING MONITOR FOR UNIFORMLY COOKING A PLURALITY OF        FOOD ITEMS REQUIRING DIFFERENT COOKING TIMES     ABSTRACT OF THE DISCLOSURE      An oven cooking monitor and method automatically control the cooking, to a selected degree of doneness, of a  plurality of food items requiring different cooking times, thereby permitting the food items to be loaded into the oven in random size order and to be removed in the order in which they become done.  In restaurant or fast food cooking a number of different roasts of beef of different sizes often are placed in an oven to be cooked to a uniform degrees of doneness, or roasts of similar of different size are placed in a oven at different times.  Uniform cooking, without overcooking, is achieved through the present invention by providing a separate disconnectable probe for each food item to generate a signal varying with the temperature sensed by each probe.  A reference temperature signal is set to correspond to a desired degree of doneness, and the sensed temperature sensed by each reference temperature signal are compared, yielding an output signal when the sensed and reference temperature match.  When an output signal is generated to indicate that one of the food items has reached the desired degree of doneness, the monitor indicates the particular probe associated with the done food item and auto-matically switches the oven to a holding temperature substantially curtailing further cooking.  The done food items is removed, and its probe is disconnected, whereupon the monitor stops the probe indicator and automatically switches the oven again to its cooking temperature.  Cooking then proceeds until the next food item is done.  In this fashion, a plurality of food items such as roasts can be cooked without requiring careful supervision, and without exceeding a prescribed degree of doneness, thereby reducing waste.          Roasts may be loaded randomly, and removed in the indicated order in which they become done.
Patent CA-1085715-A (CA)
Inventor: JAERVENPAEAE VILJO J
IPC: B01D53/18
Filed: 1976-08-18
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides apparatus for cleaning and/or cooling a gas flow in which the gas flow is brought into contact with a liquid, the apparatus comprising a conduit for the gas flow, closed at one end by an end plate, an aperture in the end plate of the conduit, a blower arranged within the con-duit to serve as a drop separator, a second blower placed out-side the conduit having a diameter larger than that of the drop separator blower, and a connecting tube passing through the aperture in the end plate of said conduit to provide fluid communication between the blowers.
Patent CA-1057078-A (CA)
Title: Cuvette for sampling a fluid, mixing the sample with a reagent, and directly making optical analysis of the sample mixed with the reagent
Inventor: LILJA JAN E
IPC: B01F11/00
Filed: 1976-09-17
Granted: 1979-06-26
Abstract: CANADIAN PATENT APPLICATION                       OF      JAN EVERT LILJA and SVEN ERIK LENNART NILSSON                      FOR            Abstract of the Disclosure A cuvette for sampling with a cavity which is defined by two planar surfaces which are placed or can be placed at a pre-determined distance from one another. A reagent is contained in the cavity in an amount which is exactly determined in relation to the volume of the cavity. The sample is drawn into the cavity preferably by capillary force and mixed with the reagent there-in spontaneously or by vibration, whereupon optical analysis takes place directly through the two planar surfaces.
Patent CA-1067803-A (CA)
Inventor: OGAWA YASUNAO
IPC: G01N33/50
Filed: 1976-10-12
Granted: 1979-12-11
Abstract: A TEST STRIP FOR THE DETECTION OF OCCULT BLOOD IN EXCRETA          ABSTRACT    A test strip for detecting the presence of occult blood in excreta such as urine or feces or body fluid, which strip compri-ses a bibulous or porous material impregnated with a chromogen, a hydroperoxide and, as a sensitizer, a thiazole compound of the formula:                                       wherein R1 is a lower alkyl; a substituted or unsubstituted aral-kenyl, or a substituted or unsubstituted aralkyl; R2 and R3 are each a hydrogen or a lower alkyl; and R2 and R3, when taken together with the adjacent carbon atoms, may form a benzene ring.
Patent CA-1090275-A (CA)
Inventor: BREUKER JACOBUS H
IPC: C10N30/00
Filed: 1976-12-01
Granted: 1980-11-25
Abstract: A B S T R A C T            A base oil composition comprising (a) a hydrocracked base oil, and (b) from 0.01 to 20 %w, based on weight of (a), of a hydrofinished vacuum distillate or deasphalted vacuum residue or a hydrotreated extract of a vacuum distillate or deasphalted vacuum residue  shows improved light stability .
Patent CA-1063043-A (CA)
Title: Method for replacing an expansion joint in the shell of a shell and tube heat exchanger
Inventor: VAN DROFFELAAR HENDRIK
IPC: F16L55/16
Filed: 1977-01-04
Granted: 1979-09-25
Abstract: ABSTRACT OF THE DISCLOSURE           A method is disclosed for removing and replacing a ruptured expansion joint in the shell of a shell and tube heat exchanger having fixed tube sheets and at least one expansion joint in the shell thereof in which it is un-necessary to cut through the tubes of the heat exchanger. The method comprises: cutting through the shell wall trans-versely on each side of the ruptured expansion joint; cutting away the ruptured expansion joint to form two shell portions separated by an opening; forming an annular ring having an outer diameter greater than at least one tube sheet of the heat exchanger around the outer surface of each of the two shell portions adjacent the opening; welding each annular ring to the outer surface of its respective shell portion; sliding a portion of new shell having an inner diameter slightly greater than the outer diameter of the annular rings and containing a new expansion  joint over one of the tube sheets of the heat exchanger and positioning it such that it straddles the two rings with each of its ends adjacent to a ring; and welding each end of the portion of shell containing the new expansion joint to its adjacent ring.  An improved heat exchanger is also disclosed.
Patent CA-1081899-A (CA)
Title: Method for the production of a low density polyethylene
Inventor: ITO AKIRA
IPC: C08F2/00
Filed: 1977-03-17
Granted: 1980-07-15
Abstract: METHOD FOR THE PRODUCTION OF         A LOW DENSITY POLYETHYLENE            ABSTRACT OF THE DISCLOSURE:         In producing a low density polyethylene by a slurry copolymerization of ethylene and an .alpha.-olefin with use of a catalyst consisting of a magnesium compound-supported titanium and/or vanadium compound and an organoaluminum compound, a certain amount of ethylene is subject to a pre-polymerization in the presence of said catalyst prior to the copolymerization.  Successively, the slurry copolymerization of ethylene and an .alpha.-olefin is effected in a low-boiling diluent to obtain a low density polyethylene of 0.925 - 0.950 in density, covering various grades in a wide range.
Patent CA-1086312-A (CA)
Inventor: IRVINE ALEXANDER M
IPC: C09B67/22
Filed: 1977-08-06
Granted: 1980-09-23
Abstract: Abstract of the Disclosure A copper phthalocyanine derivative having the formula:                  or a mixture wherein CuPc represents the residue of a copper phthalocyanine molecule, Y is an alkyl or alkenyl residue each having from 8 to 22 atoms, and each being unsubstituted or substituted by one or more hydroxy groups or being interrupted by one or more nitrogen atoms, or Y is an alkoxyaryl- or aralkloxyaryl, or an alkyl-aralkloxyaryl residue wherein the alkoxy-, aralkyloxy- or alkyl-aralkyloxy moiety contains from 7 to 22 carbon atoms, and n is an integer from 1 to 8, provides, when incorporated into a phthalocyanine pigment, a phthalocyanine pigment composition having excellent flocculation resistance, when incorporated into paint and printing media, which moreover exhibit impro-ved flow.
Patent CA-1091406-A (CA)
Inventor: ASAMI SHUNICHI
IPC: B01J49/00
Filed: 1977-04-22
Granted: 1980-12-16
Abstract: ABSTRACT OF THE DISCLOSURE             A homogeneous cation-exchange membrane made of at least one fluorinated polymer having cation-exchangeable groups is swollen with a water miscible organic solvent and then the solvent is removed from the swollen membrane.  The fluorinated polymer having cation-exchangeable groups has special character-istics to the water-miscible organic solvent because the cation-exchangeable groups having high affinity to the water-miscible organic solvent though the base of the fluorinated polymer may have water- and oil-repellent properties, whereby the cation-exchange membrane of the fluorinated polymer having cation-exchangeable groups is modified to reduce the permeability of hydroxyl ions by swelling it and removing the water-miscible organic solvent.
Patent CA-1095734-A (CA)
Inventor: PLATT CLARK I
IPC: D06F13/02
Filed: 1977-05-27
Granted: 1981-02-17
Abstract: COMBINED OSCILLATING AND UNIDIRECTIONAL      AGITATOR FOR AUTOMATIC WASHER          ABSTRACT OF THE DISCLOSURE     Improved agitation means for use in a clothes washing machine of the type in which an agitator is oscillated by means of a drive mechanism to secure agitation of the clothes  placed within the washing machine.  The present invention provides a first agitator element and a second agitator element driven from a common driving source, the second agitator element being provided with means to urge clothes into a rollover pattern established by the coaction of the agitator elements and thereby impart a highly efficient rollover motion to the clothes.  The first agitator element employs flexible vanes and is preferably located below and coaxial to the second agitator element which may be driven either intermittently, or continuously, in a unidirectional rotary motion.  Use of the flexible vanes tends to avoid tangling of fabrics on the agitator, which might otherwise lead to increased shaft torque, reduced rollover or an unbalanced load of clothes.
Patent CA-1108761-A (CA)
Inventor: KNIAT JOHN
IPC: F02C9/28
Filed: 1977-07-05
Granted: 1981-09-08
Abstract: MEANS FOR CALCULATING TURBINE INLET TEMPERATURE OF A GAS TURBINE ENGINE                Abstract of the Disclosure Turbine inlet temperature of a gas turbine engine is calculated from compressor discharge temperature, total and static pressures and total fuel metered to the engine by combining a sensed engine temperature with a derived fuel/air ratio and from the empirical burner can temperature rise equation solving for the turbine inlet temperature value.
Patent CA-1073637-A (CA)
Inventor: SHIGA SHUJIRO
IPC: B01J8/12
Filed: 1977-07-20
Granted: 1980-03-18
Abstract: METHOD FOR CATALYTICALLY REDUCING NITROGEN OXIDES            Abstract of the Disclosure A method is disclosed for the removal of nitrogen oxides from heavy oil combustion exhaust gases containing nitrogen oxides, sulfur oxides and dust by a catalytic reduction process using a moving catalyst bed reactor wherein the exhaust gases are catalytically contacted with ammonia at 250 to 450°C.  In the moving bed process, a small amount of the catalyst is removed from the reactor through a catalyst outlet and it is then treated for the removal of dust and/or for reactivation, then returned to the catalyst bed through a catalyst inlet in the reactor.  A sealing gas having a temperature of 200°C. or higher, preferably 280°C. or higher, and a pressure higher than the average pressure at the outlet and inlet, is introduced into the portions of the reactor where the catalyst is removed and returned, i.e. adjacent the outlet and the inlet.  By this method a decrease of the catalyst activity can be effectively prevented, probably because sulfur-contain-ing salts are prevented from adhering to the catalyst bed in the region of the outlet and the inlet by the introduction of the sealing gas.
Patent CA-1088048-A (CA)
Inventor: NEUMAN CLAYTON L
IPC: B29C48/50
Filed: 1977-07-22
Granted: 1980-10-21
Abstract: ABSTRACT         The disclosure is directed to dispersion apparatus for use with injection molding sysyems for thoroughly mixing hot melted plastic with coloring or other additives before injection into a mold.  Dispersion is accomplished by passing the hot melted plastic through a chamber in which a plurality of smooth, spherical bodies are disposed.  Each of the spherical bodies is formed with a plurality of peripheral grooves which are orthogonal and generally lie within planes passing through diameters of the body.
Patent CA-1082698-A (CA)
Inventor: NEUZIL RICHARD W
IPC: C07H1/06
Filed: 1977-07-26
Granted: 1980-07-29
Abstract: ABSTRACT           A process for separating a monosaccharide from a feed mixture comprising a monosaccharide and an oligosaccharide which process comprises contacting the mixture with an adsorbent com-prising a X or a Y zeolite containing one or more selected cations at the exchangeable cationic sites thereby selectively adsorbing a monosaccharide from the feed mixture and thereafter recovering the monosaccharide.  Preferably the monosaccharide will be recovered by desorption from the adsorbent with a desorbent material.
Patent CA-1102618-A (CA)
Inventor: WINDELE JOSEF
IPC: G03G15/16
Filed: 1977-08-11
Granted: 1981-06-09
Abstract: ABSTRACT OF THE DISCLOSURE          Arrangements for guiding tape-like data carrier over recording member to record data on the carrier. Two pivotally mounted guide members move the carrier so that the portion between the members remains taut. The length of carrier between said members is preferably constant.  A cam-controlled mechanism  pivots the guide members.  Particularly applicable to electrostatic high-speed printers.
Patent CA-1097254-A (CA)
Inventor: PORTNOY NORMAN A
IPC: B01D3/34
Filed: 1977-08-17
Granted: 1981-03-10
Abstract: N. A. Portnoy-D.P. Anderson 6-1 RECOVERY OF CHEMICAL COMPONENTS OF CELLULOSIC REGENERATING SOLUTION            Abstract of the Disclosure:         Recovery of the chemical components of a cellulosic organic solvent regenerating solution containing a dialkyl-acylamide, a lower aliphatic monohydric alchol, a nitrite of the alcohol and nitric acid.  The process comprises distilling the solution to remove the alcohol nitrite and alcohol, leaving the dialkylacylamide and nitric acid, recovering the alcohol, hydrolyzing to convert the alcohol nitrite e to the alcohol and nitrous acid, nertralizing the nitric and nitrous acid with an alkali or alkaline earth metal oxide ox hydroxide and distilling the solution to remove water and to separate and recover the remaining alcohol, the dialkylacylamide and the nitrate and nitrite salts.  The nitrite and nitrite salts are converted by pyrolysis to nitrogen dioxide.  The process results in sub-stantially total recovery of the process chemicals.
Patent CA-1102232-A (CA)
Inventor: BENNETT JOHN R
IPC: B01J19/30
Filed: 1977-09-26
Granted: 1981-06-02
Abstract: ABSTRACT          A bed for the treatment of fluids comprising a plurality of packing units.  Each packing unit has a plurality of fins disposed around an axis lying substantially in the plane of each of the fins.  The fins are held in a speed relationship to one another by at least one generally annular reinforcing member between each angularly adjacent pair of fins in a plane substantially perpendicular to the axis.  The outward facing edges of the fins are serrated.